Timeline for Non-causality-violating FTL travel. / Can omnipotence beat causality?
Current License: CC BY-SA 4.0
9 events
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| Nov 28, 2019 at 19:14 | comment | added | Irigi | Greg Egan in Diaspora argued, that although wormholes can be setup in causality-violating manner in theory, when two wormholes approach too much to this setup, there is path between them when a virtual particle can travel between the mouths in zero time. This effectively causes resonance, which destroys the wormholes approaching the causality violating setup. Demonstrating applet. Such model of FTL travel is non-causality violating. | |
| Apr 8, 2019 at 14:00 | comment | added | Nosajimiki | Even if they had a detector at the 50 light year mark, they'd still need to send a signal the remaining 50 light years which still gives you a 100 year window to either die or make another jump. | |
| Apr 7, 2019 at 6:22 | comment | added | Dubukay | Small arguendo - in theory, it could be as little as 50 years for their detection of you, if the detector is halfway between jump start and jump end. Which raises an interesting point of “its okay to break the law as long as you do it really fast” which is both an excellent XKCD and an allegory for virtual particles | |
| Apr 5, 2019 at 15:34 | history | edited | Nosajimiki | CC BY-SA 4.0 |
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| Apr 5, 2019 at 14:44 | comment | added | Nosajimiki | Ah, I see what you getting at. If the ends are framed to objects on either end and not each other, then this would create a freebee frame shift. | |
| Apr 5, 2019 at 14:25 | comment | added | The Square-Cube Law | the wormhole has mouths. If one is nesr Earth and the other is at Barnard's star, they are moving at 90km/s relative to each other, currently accelerating, but will decellerate at some point and start accelersti g again later. Each mouth will be at its own time frame. | |
| Apr 5, 2019 at 14:16 | comment | added | Nosajimiki | The wormhole can be stationary in its own inertial frame regardless of how timespace defforms. Because the wormhole never leaves it's inertial frame of reference, the twin paradox resolves just fine under the rules of special relativity. Going through a wormhole does not propel you at >C speeds. You fly in 10km/sec, you stay at 10km/sec just as if you flew through normal space to get there. Ignoring that other path that would have taken longer is like choosing to drive 5km east to reach a destination instead of flying west all the way around the world, it's just a shortcut. | |
| Apr 4, 2019 at 21:43 | comment | added | The Square-Cube Law | Any two wormhole mouths at far enough distances to allow for effectuve FTL will be accelerating towards and from each other at relativistic speeds. Remember the twin paradox? After some iterations, each mouth will be in its own time, and you will be able to use them for time travel - hence, you will be able to break causality. | |
| Apr 4, 2019 at 21:37 | history | answered | Nosajimiki | CC BY-SA 4.0 |